commit 64caa2e247a067ec0e40a2554cf8759a24245b3e
author Colin Cross <ccross@android.com> Tue Mar 12 23:58:06 2013 +0000
committer Android Git Automerger <android-git-automerger@android.com> Tue Mar 12 23:58:06 2013 +0000
tree e9e33364c6933372faf9b5ec39b26eebcdd81b47
parent 387742d924306156f5693f8e3ca749f474ece8cb
parent 8f17ea6b7884752fc02bc9a927cac680c5bd8691

am 8f17ea6b: am d4b360a2: am 1d77e6e4: am 3960ec22: Merge "mkbootimg: support 8192/16384 pagesizes"

* commit '8f17ea6b7884752fc02bc9a927cac680c5bd8691':
  mkbootimg: support 8192/16384 pagesizes

include/cutils/bitops.h

diff --git a/include/cutils/bitops.h b/include/cutils/bitops.h
index eb44236..c26dc54 100644
--- a/include/cutils/bitops.h
+++ b/include/cutils/bitops.h
@@ -75,6 +75,16 @@
     return -1;
 }
 
+static inline int bitmask_weight(unsigned int *bitmask, int num_bits)
+{
+    int i;
+    int weight = 0;
+
+    for (i = 0; i < BITS_TO_WORDS(num_bits); i++)
+        weight += __builtin_popcount(bitmask[i]);
+    return weight;
+}
+
 static inline void bitmask_set(unsigned int *bitmask, int bit)
 {
     bitmask[BIT_WORD(bit)] |= BIT_MASK(bit);